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प्रश्न
What do you understand by the terms phenotype and genotype?
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उत्तर
Phenotype is the outward appearance or morphological character of an organism. The expression of a gene or the genetic makeup of an individual for a particular trait is called a genotype.
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संबंधित प्रश्न
Differentiate between the following:
Monohybrid and Dihybrid
Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F1 generation are then selfed to produce F2 generation of pea plants.
Which type of plants was missing in the F1 generation but reappeared in the F2 generation?
When a tall plant with rounded seeds (TTRR) is grossed with a Dwarf plant with wrinkled seeds (ttrr) the F1 generation consists of tall plants with rounded seeds. How many types of gametes the F1 plant would produce?
Pooja has green eyes while her parents and brother have black eyes. Pooja’s husband Ravi has black eyes while his mother has green eyes and father has black eyes.
a. On the basis of the above given information, is the green eye colour a dominant or recessive trait? Justify your answer
b. What is the possible genetic makeup of Pooja’s brother’s eye colour?
c. What is the probability that the offspring of Pooja and Ravi will have green eyes? Also, show the inheritance of eye colour in the offspring with the help of a suitable cross.
OR
c. 50% of the offspring of Pooja’s brother are green eyed. With help of cross show how this is possible.
Given below is a schematic representation of the inheritance of the shape of the seeds of garden peas. Answer the questions that follow:
- Which is the dominant and recessive allele of the trait?
- What does the ratio 3 : 1 in the F2 generation represent?
- State Mendel's Law of Dominance.
Mendel used a monohybrid cross to understand how which feature passes from parents to offspring?
What is the genotype of the pure tall plant selected in the experimental sequence?
What is the genotype of the pure dwarf plant selected in the experimental sequence?
What is the genotypic ratio in F2?
